280ZX L6-2753cc 2.8L SOHC (L28E) (1982)
Oxygen Sensor: Testing and Inspection
Resistance Measurement Test
1. Connect ohmmeter between terminal 31 of EFI harness connector and ground.
2. Meter should read 0 resistance.
3. If reading is not as specified, check wiring between exhaust gas sensor and control unit. To test exhaust gas sensor refer to "Component Testing."